Discrete convolution.
조회 수: 1 (최근 30일)
이전 댓글 표시
Hi, im trying to make certain examples of convolution codes for a function with N elements. so far I have done this. But I wish to find out a way so that it can be implemented on C too. any ideas or help?
clear all; close all; clc
x=[1 2 3]
h=[-1 0 3]
Z=[0]
[M,N]=size(x)
[L,O]=size(h)
a=1
A=N+O-1
suma=[0]
for n=1:1:N
for o=1:1:O
y(n,o)=x(n)*h(o)
end
end
s=fliplr(y);
n=-1*(N-1);
for r=1:A
Yfor(r)=sum(diag(s,n))
n=n+1;
end
Yconv=fliplr(Yfor)
%Yfor=0
%Yfor(1)=y(1,1)
%Yfor(2)=y(2,1)+y(1,2)
%Yfor(3)=y(3,1)+y(2,2)+y(1,3)
%Yfor(4)=y(3,2)+y(2,3)
%Yfor(5)=y(3,3)
Y=conv(x,h)
figure, stem(x)
grid on
figure,stem(Yconv) grid on
댓글 수: 2
Walter Roberson
2011년 11월 26일
Everything other than the conv() and the graphics should be easy to do in C.
For example, since you do not use s after taking the diag() of it, you can just design your equivalent to diag to index right to left instead of left to right.
답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Logical에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!